CN114211622A - High-strength impact-resistant diamond saw blade material and preparation process thereof - Google Patents

High-strength impact-resistant diamond saw blade material and preparation process thereof Download PDF

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Publication number
CN114211622A
CN114211622A CN202111637397.1A CN202111637397A CN114211622A CN 114211622 A CN114211622 A CN 114211622A CN 202111637397 A CN202111637397 A CN 202111637397A CN 114211622 A CN114211622 A CN 114211622A
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percent
powder
matrix
alloy powder
iron
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CN202111637397.1A
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Chinese (zh)
Inventor
邱宏波
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Jiangsu Jinyuansu Superhard Material Co ltd
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Jiangsu Jinyuansu Superhard Material Co ltd
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Priority to CN202111637397.1A priority Critical patent/CN114211622A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
    • B22F7/064—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts using an intermediate powder layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
    • B24B3/46—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of disc blades
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • C22C30/04—Alloys containing less than 50% by weight of each constituent containing tin or lead
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware

Abstract

The invention discloses a high-strength impact-resistant diamond saw blade material and a preparation process thereof, wherein the preparation process comprises the following steps: the base body and the plurality of tool bits are sintered and formed in a hot pressing manner; the tool bit is provided with diamond particles and matrix powder; a transition layer is arranged at the joint of the cutter head and the base body; the novel raw material ratio for preparing the matrix and the matrix powder is set, the ratio of the alloy powder is increased, the strength of the matrix and the matrix can be improved, the volume concentration of diamond particles is improved to 11% from 8% generally, the strength of the matrix is improved, the covering surface of the diamond particles is improved, the cutting strength is further improved, the transition layer is arranged between the tool bit and the matrix, the raw material ratio of the transition layer can enhance the toughness of the connection of the tool bit and the matrix, and the impact resistance is further improved.

Description

High-strength impact-resistant diamond saw blade material and preparation process thereof
Technical Field
The invention belongs to the technical field of metal cutting and machining tools, and particularly relates to a high-strength impact-resistant diamond saw blade material and a preparation process thereof.
Background
The diamond saw blade is a saw cutting tool and is widely applied to cutting and processing of hard and brittle materials such as concrete, refractory materials, stones, ceramics and the like. The diamond saw blade mainly comprises a base body and a tool bit, wherein the tool bit is generally composed of a matrix alloy and diamond particles in a certain proportion, and the diamond particles and the like are cut by utilizing the holding force of the matrix alloy on the diamond particles. Provides a high-strength impact-resistant diamond saw blade material and a preparation process thereof for improving the cutting performance of the diamond saw blade.
Disclosure of Invention
In view of the above, the technical problem to be solved by the present invention is to provide a high-strength impact-resistant diamond saw blade material and a preparation process thereof, and to solve the problem of poor saw cutting strength of the saw blade in the prior art.
In order to solve the technical problems, the invention discloses a high-strength impact-resistant diamond saw blade, which comprises: the base body and the plurality of tool bits are sintered and formed in a hot pressing manner; the tool bit is provided with diamond particles and matrix powder; the joint of the cutter head and the base body is provided with a transition layer.
A preparation material of a high-strength impact-resistant diamond saw blade comprises the following components in percentage by weight: 35-40% of copper, 5-10% of tin, 18-24% of superfine iron powder, 10-15% of common iron powder, 1-10% of copper-tin alloy powder, 7-15% of iron-nickel alloy powder and 3-8% of ferrophosphorus alloy powder; the matrix powder comprises the following components in percentage by weight: 18-25% of cobalt, 30-40% of copper, 4-8% of tin, 14-30% of iron powder, 13-23% of alloy powder and 1-3% of carbon particles; the transition layer part comprises the following components in percentage by weight: 48-60% of iron, 3-5% of manganese and 35-45% of cobalt; the volume concentration of the diamond particles is 8-15%.
Further, the thickness of the transition layer is 0.5 to 2 mm.
Further, the diamond particle volume concentration is 11%.
Further, the base part comprises the following components in percentage by weight: 35% of copper, 9% of tin, 19% of superfine iron powder, 14% of common iron powder, 5% of copper-tin alloy powder, 11% of iron-nickel alloy powder and 7% of ferro-phosphorus alloy powder.
Further, the matrix powder comprises the following components in percentage by weight: 22.3 percent of cobalt, 35.2 percent of copper, 6 percent of tin, 14.7 percent of superfine iron powder, 6 percent of common iron powder, 5 percent of copper-tin alloy powder, 6 percent of iron-nickel alloy powder, 3 percent of ferrophosphorus alloy powder and 1.8 percent of carbon particles.
Further, the transition layer part comprises the following components in percentage by weight: 57% of iron, 3% of manganese and 40% of cobalt.
A preparation process of a high-strength impact-resistant diamond saw blade comprises the following steps:
s1, preparing raw materials of a matrix, diamond particles, matrix powder and a transition layer according to a formula, wherein the matrix part comprises the following components in percentage by weight: 35% of copper, 9% of tin, 19% of superfine iron powder, 14% of common iron powder, 5% of copper-tin alloy powder, 11% of iron-nickel alloy powder and 7% of ferro-phosphorus alloy powder. The matrix powder comprises the following components in percentage by weight: 22.3 percent of cobalt, 35.2 percent of copper, 6 percent of tin, 14.7 percent of superfine iron powder, 6 percent of common iron powder, 5 percent of copper-tin alloy powder, 6 percent of iron-nickel alloy powder, 3 percent of ferrophosphorus alloy powder and 1.8 percent of carbon particles. The transition layer part comprises the following components in percentage by weight: 57% of iron, 3% of manganese and 40% of cobalt;
s2, sieving: screening the prepared ingredients in the first step by 35, 40 and 45 mesh screens in sequence for three-stage screening;
s3, mixing: adding the phenolic resin into the raw materials proportioned in the step S1 in proportion and fully mixing;
s4, sintering: pouring the mixed raw materials into corresponding moulds, and carrying out hot pressing at the temperature of 180 ℃ for 5 minutes to respectively obtain a preformed matrix, a cutter head and a transition layer, wherein the thickness of the transition layer is 1.5 mm;
s5, cooling: placing the formed basal body, the cutter head and the transition layer in the same dieAt a temperature of 850 ℃ and 350kg/cm2Hot-pressing and sintering for 1.5-2 h under the pressure of the pressure to form the final saw blade;
s6, after sintering, removing the sintering furnace through a lifting mechanism, and continuously cooling through the nitrogen-hydrogen mixed gas with the introduction amount of 0.8-1.0m3Min, cooling for 2-2.5 h to prepare a semi-finished product;
s7, surface treatment: loading the cooled semi-finished diamond product on a multi-station rotary processing disc, performing surface treatment, ash removal and scale removal on a plurality of rotating steel wire wheels, wherein the rotating speed of the rotary processing disc is 15-20r/min, and the rotating speed of the steel wire wheels is 30-40 r/min;
s8, spray painting: the diamond semi-finished product after surface treatment is arranged on a paint spraying frame to be sprayed with metallic paint;
s9, edging: and c, putting the diamond semi-finished product after paint spraying on a sharpening device for sharpening, wherein the sharpening device is provided with a grinding wheel, and the rotating speed of the grinding wheel is 30-35 r/min.
Compared with the prior art, the application can obtain the following technical effects:
the novel raw material ratio for preparing the matrix and the matrix powder is set, the ratio of the alloy powder is increased, the strength of the matrix and the matrix can be improved, the volume concentration of diamond particles is improved to 11% from 8% generally, the strength of the matrix is improved, the covering surface of the diamond particles is improved, the cutting strength is further improved, the transition layer is arranged between the tool bit and the matrix, the raw material ratio of the transition layer can enhance the toughness of the connection of the tool bit and the matrix, and the impact resistance is further improved.
Of course, it is not necessary for any one product to achieve all of the above-described technical effects simultaneously.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic view of a saw blade according to an embodiment of the present invention.
Reference symbols of the drawings
The tool bit comprises a base body 1, a tool bit 2 and a transition layer 3.
Detailed Description
Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.
Referring to fig. 1, fig. 1 is a schematic view of a saw blade according to an embodiment of the invention.
A high strength impact resistant diamond saw blade comprising: the base body 1 and the plurality of tool bits 2 are formed by hot-pressing sintering; the tool bit 2 has diamond particles and matrix powder; the joint of the tool bit 2 and the base body 1 is provided with a transition layer 3. A material for preparing a high-strength impact-resistant diamond saw blade comprises a matrix 1 part and a base body part, wherein the matrix 1 part comprises the following components in percentage by weight: 35-40% of copper, 5-10% of tin, 18-24% of superfine iron powder, 10-15% of common iron powder, 1-10% of copper-tin alloy powder, 7-15% of iron-nickel alloy powder and 3-8% of ferrophosphorus alloy powder; the matrix powder comprises the following components in percentage by weight: 18-25% of cobalt, 30-40% of copper, 4-8% of tin, 14-30% of iron powder, 13-23% of alloy powder and 1-3% of carbon particles; the transition layer part comprises the following components in percentage by weight: 48-60% of iron, 3-5% of manganese and 35-45% of cobalt; the volume concentration of the diamond particles is 8-15%. The thickness of the transition layer 3 is 0.5 to 2 mm.
The first embodiment is as follows: a preparation process of a high-strength impact-resistant diamond saw blade comprises the following steps:
s1, preparing raw materials of the substrate 1, the diamond particles, the matrix powder and the transition layer 3 according to a formula, wherein the substrate 1 comprises the following components in percentage by weight: 35% of copper, 9% of tin, 19% of superfine iron powder, 14% of common iron powder, 5% of copper-tin alloy powder, 11% of iron-nickel alloy powder and 7% of ferro-phosphorus alloy powder. The matrix powder comprises the following components in percentage by weight: 22.3 percent of cobalt, 35.2 percent of copper, 6 percent of tin, 14.7 percent of superfine iron powder, 6 percent of common iron powder, 5 percent of copper-tin alloy powder, 6 percent of iron-nickel alloy powder, 3 percent of ferrophosphorus alloy powder and 1.8 percent of carbon particles. The transition layer 3 part comprises the following components in percentage by weight: 57% of iron, 3% of manganese and 40% of cobalt;
s2, sieving: screening the prepared ingredients in the first step by 35, 40 and 45 mesh screens in sequence for three-stage screening;
s3, mixing: adding the phenolic resin into the raw materials proportioned in the step S1 in proportion and fully mixing;
s4, sintering: pouring the mixed raw materials into corresponding moulds, and carrying out hot pressing at the temperature of 180 ℃ for 5 minutes to respectively obtain a preformed matrix 1, a cutter head 2 and a transition layer 3, wherein the thickness of the transition layer 3 is 1.5 mm;
s5, cooling: placing the formed substrate 1, the tool bit 2 and the transition layer 3 on the same die at 850 ℃ and 350kg/cm2Hot-pressing and sintering for 1.5-2 h under the pressure of the pressure to form the final saw blade;
s6, after sintering, removing the sintering furnace through a lifting mechanism, and continuously cooling through the nitrogen-hydrogen mixed gas with the introduction amount of 0.8-1.0m3Min, cooling for 2-2.5 h to prepare a semi-finished product;
s7, surface treatment: loading the cooled semi-finished diamond product on a multi-station rotary processing disc, performing surface treatment, ash removal and scale removal on a plurality of rotating steel wire wheels, wherein the rotating speed of the rotary processing disc is 15-20r/min, and the rotating speed of the steel wire wheels is 30-40 r/min;
s8, spray painting: the diamond semi-finished product after surface treatment is arranged on a paint spraying frame to be sprayed with metallic paint;
s9, edging: and c, putting the diamond semi-finished product after paint spraying on a sharpening device for sharpening, wherein the sharpening device is provided with a grinding wheel, and the rotating speed of the grinding wheel is 30-35 r/min.
Example two: : a preparation process of a high-strength impact-resistant diamond saw blade comprises the following steps:
s1, preparing raw materials of the substrate 1, the diamond particles, the matrix powder and the transition layer 3 according to a formula, wherein the substrate 1 comprises the following components in percentage by weight: 37% of copper, 7% of tin, 19% of superfine iron powder, 13% of common iron powder, 6% of copper-tin alloy powder, 14% of iron-nickel alloy powder and 4% of ferro-phosphorus alloy powder. The matrix powder comprises the following components in percentage by weight: 23% of cobalt, 32% of copper, 6% of tin, 10% of superfine iron powder, 7% of common iron powder, 7% of copper-tin alloy powder, 9% of iron-nickel alloy powder, 4% of ferrophosphorus alloy powder and 2% of carbon particles. The transition layer 3 part comprises the following components in percentage by weight: 51% of iron, 4% of manganese and 45% of cobalt;
s2, sieving: screening the prepared ingredients in the first step by 35, 40 and 45 mesh screens in sequence for three-stage screening;
s3, mixing: adding the phenolic resin into the raw materials proportioned in the step S1 in proportion and fully mixing;
s4, sintering: pouring the mixed raw materials into corresponding moulds, and carrying out hot pressing at the temperature of 180 ℃ for 5 minutes to respectively obtain a preformed matrix 1, a cutter head 2 and a transition layer 3, wherein the thickness of the transition layer 3 is 1.5 mm;
s5, cooling: placing the formed substrate 1, the tool bit 2 and the transition layer 3 on the same die at 850 ℃ and 350kg/cm2Hot-pressing and sintering for 1.5-2 h under the pressure of the pressure to form the final saw blade;
s6, after sintering, removing the sintering furnace through a lifting mechanism, and continuously cooling through the nitrogen-hydrogen mixed gas with the introduction amount of 0.8-1.0m3Min, cooling for 2-2.5 h to prepare a semi-finished product;
s7, surface treatment: loading the cooled semi-finished diamond product on a multi-station rotary processing disc, performing surface treatment, ash removal and scale removal on a plurality of rotating steel wire wheels, wherein the rotating speed of the rotary processing disc is 15-20r/min, and the rotating speed of the steel wire wheels is 30-40 r/min;
s8, spray painting: the diamond semi-finished product after surface treatment is arranged on a paint spraying frame to be sprayed with metallic paint;
s9, edging: and c, putting the diamond semi-finished product after paint spraying on a sharpening device for sharpening, wherein the sharpening device is provided with a grinding wheel, and the rotating speed of the grinding wheel is 30-35 r/min.
The novel raw material ratio for preparing the matrix and the matrix powder is set, the ratio of the alloy powder is increased, the strength of the matrix 1 and the matrix can be improved, the volume concentration of diamond particles is improved to 11% from 8% generally, the strength of the matrix is improved, the covering surface of the diamond particles is improved, the cutting strength is further improved, the transition layer 3 is arranged between the tool bit 2 and the matrix 1, the toughness of the connection of the tool bit 2 and the matrix 1 can be enhanced by the raw material ratio of the transition layer 3, and the impact resistance is further improved.
The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. A high strength impact resistant diamond saw blade comprising: the base body and the plurality of tool bits are sintered and formed in a hot pressing manner; the tool bit is provided with diamond particles and matrix powder;
the cutting tool is characterized in that a transition layer is arranged at the joint of the cutting tool head and the base body.
2. The preparation material of the high-strength impact-resistant diamond saw blade is characterized in that the matrix part comprises the following components in percentage by weight: 35-40% of copper, 5-10% of tin, 18-24% of superfine iron powder, 10-15% of common iron powder, 1-10% of copper-tin alloy powder, 7-15% of iron-nickel alloy powder and 3-8% of ferrophosphorus alloy powder; the matrix powder comprises the following components in percentage by weight: 18-25% of cobalt, 30-40% of copper, 4-8% of tin, 14-30% of iron powder, 13-23% of alloy powder and 1-3% of carbon particles; the transition layer part comprises the following components in percentage by weight: 48-60% of iron, 3-5% of manganese and 35-45% of cobalt; the volume concentration of the diamond particles is 8-15%.
3. A high strength impact resistant diamond saw blade as defined in claim 1, wherein said transition layer has a thickness of 0.5 to 2 mm.
4. A material for manufacturing a high-strength impact-resistant diamond saw blade as set forth in claim 2, wherein the diamond particle volume concentration is 11%.
5. A material for manufacturing a high-strength impact-resistant diamond saw blade as set forth in claim 2, wherein said base portion comprises the following components in percentage by weight: 35% of copper, 9% of tin, 19% of superfine iron powder, 14% of common iron powder, 5% of copper-tin alloy powder, 11% of iron-nickel alloy powder and 7% of ferro-phosphorus alloy powder.
6. A material for manufacturing a high-strength impact-resistant diamond saw blade as set forth in claim 2, wherein said matrix powder comprises the following components in percentage by weight: 22.3 percent of cobalt, 35.2 percent of copper, 6 percent of tin, 14.7 percent of superfine iron powder, 6 percent of common iron powder, 5 percent of copper-tin alloy powder, 6 percent of iron-nickel alloy powder, 3 percent of ferrophosphorus alloy powder and 1.8 percent of carbon particles.
7. A material for manufacturing a high-strength impact-resistant diamond saw blade as set forth in claim 2, wherein said transition layer portion comprises the following components in percentage by weight: 57% of iron, 3% of manganese and 40% of cobalt.
8. A preparation process of a high-strength impact-resistant diamond saw blade comprises the following steps:
s1, preparing raw materials of a matrix, diamond particles, matrix powder and a transition layer according to a formula, wherein the matrix part comprises the following components in percentage by weight: 35% of copper, 9% of tin, 19% of superfine iron powder, 14% of common iron powder, 5% of copper-tin alloy powder, 11% of iron-nickel alloy powder and 7% of ferro-phosphorus alloy powder; the matrix powder comprises the following components in percentage by weight: 22.3 percent of cobalt, 35.2 percent of copper, 6 percent of tin, 14.7 percent of superfine iron powder, 6 percent of common iron powder, 5 percent of copper-tin alloy powder, 6 percent of iron-nickel alloy powder, 3 percent of ferrophosphorus alloy powder and 1.8 percent of carbon particles; the transition layer part comprises the following components in percentage by weight: 57% of iron, 3% of manganese and 40% of cobalt;
s2, sieving: screening the prepared ingredients in the first step by 35, 40 and 45 mesh screens in sequence for three-stage screening;
s3, mixing: adding the phenolic resin into the raw materials proportioned in the step S1 in proportion and fully mixing;
s4, sintering: pouring the mixed raw materials into corresponding moulds, and carrying out hot pressing at the temperature of 180 ℃ for 5 minutes to respectively obtain a preformed matrix, a cutter head and a transition layer, wherein the thickness of the transition layer is 1.5 mm;
s5, cooling: placing the formed substrate, the cutter head and the transition layer on the same die at 850 ℃ and 350kg/cm2Hot-pressing and sintering for 1.5-2 h under the pressure of the pressure to form the final saw blade;
s6, after sintering, removing the sintering furnace through a lifting mechanism, and continuously cooling through the nitrogen-hydrogen mixed gas with the introduction amount of 0.8-1.0m3Min, cooling for 2-2.5 h to prepare a semi-finished product;
s7, surface treatment: loading the cooled semi-finished diamond product on a multi-station rotary processing disc, performing surface treatment, ash removal and scale removal on a plurality of rotating steel wire wheels, wherein the rotating speed of the rotary processing disc is 15-20r/min, and the rotating speed of the steel wire wheels is 30-40 r/min;
s8, spray painting: the diamond semi-finished product after surface treatment is arranged on a paint spraying frame to be sprayed with metallic paint;
s9, edging: and c, putting the diamond semi-finished product after paint spraying on a sharpening device for sharpening, wherein the sharpening device is provided with a grinding wheel, and the rotating speed of the grinding wheel is 30-35 r/min.
CN202111637397.1A 2021-12-30 2021-12-30 High-strength impact-resistant diamond saw blade material and preparation process thereof Pending CN114211622A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115041679A (en) * 2022-06-28 2022-09-13 河南黄河旋风股份有限公司 Diamond surface modification treatment method and application
CN115464139A (en) * 2022-08-15 2022-12-13 浙江省永康市金都工贸有限公司 Dry-wet dual-purpose diamond drill bit and manufacturing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115041679A (en) * 2022-06-28 2022-09-13 河南黄河旋风股份有限公司 Diamond surface modification treatment method and application
CN115464139A (en) * 2022-08-15 2022-12-13 浙江省永康市金都工贸有限公司 Dry-wet dual-purpose diamond drill bit and manufacturing method thereof

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